Kernel issue - not mount VFS

While doing install of image when booting receive a kernel error:
end kernel panic NOT SYNCING : VFS: unable to mount root FS on unkown block (179,2).

Any ideas appreciated to help get working.
Thanks in advance

That's a strong sign your SD card is bad or your copying (eg with Etcher) went wrong.

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Yet another case of people over-thinking this.

  1. Use Etcher to install the zip file you downloaded to the microSD
  2. Configure your WiFi by editing octopi-wpa-supplicant.txt on the root of the flashed card when using it like a thumb drive
  3. Boot the Pi from the card

Sd was incorrectly formatted. Started fresh, all good. Thanks

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Yes, you need no formating at all...

You were formatting and then etching? Or etching, then Windows complained and so you formatted?